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Disassembling and Cleaning the Barrett M82

In this article, you will learn how to disassemble and clean the Barrett M82, a powerful firearm. We will provide you with step-by-step instructions and a video guide to help you take apart and clean this firearm. Additionally, we will offer a brief historical background on the Barrett M82 to give you more context about its significance. By the end of this article, you will have a thorough understanding of how to properly maintain and care for the Barrett M82.

Disassembling and Cleaning the Barrett M82

Introduction to the Barrett M82/M107

The Barrett M82/M107 is a world-renowned firearm known for its power and accuracy. Manufactured by Barrett Firearms Manufacturing, the M82/M107 is a .50 caliber semi-automatic sniper rifle initially developed for military use. Over the years, it has gained popularity among civilians and law enforcement agencies for long-range shooting and sports shooting competitions.

Brief History of the Barrett M82/M107

The Barrett M82/M107 has a fascinating history that dates back to the early 1980s. It was designed by Ronnie Barrett, a professional photographer turned firearm engineer, who aimed to create a rifle capable of firing the .50 BMG (Browning Machine Gun) round accurately and reliably. The first prototype was completed in 1980, and after several modifications, the M82/M107 was officially introduced to the market in 1982.

Overview of the Barrett M82/M107 Firearm

The Barrett M82/M107 is a recoil-operated, magazine-fed firearm. Its impressive design allows for accurate shooting at long distances, with effective ranges reaching up to 1,800 meters. The rifle features a bullpup configuration, which means that the action is located behind the trigger group, resulting in a shorter overall length.

The M82/M107 is constructed primarily of steel and aluminum, making it durable and robust. It weighs approximately 30 pounds (13.6 kilograms) and has a length of around 48 inches (122 centimeters). It utilizes a detachable box magazine that can hold up to 10 rounds.

Safety Precautions

Handling firearms safely is of utmost importance to prevent accidents and ensure the wellbeing of yourself and others. Before disassembling and cleaning the Barrett M82/M107, it is crucial to familiarize yourself with basic firearm safety rules and acquire the necessary safety gear.

Importance of Handling Firearms Safely

Firearms are tools designed for potential lethal force, and their handling should never be taken lightly. Treating every firearm as if it is loaded, and never pointing it at anything you are not willing to destroy are fundamental principles of firearm safety. Negligence or improper handling can lead to severe injuries or fatalities.

Basic Firearm Safety Rules

  1. Always keep the muzzle pointed in a safe direction.
  2. Treat every firearm as if it is loaded.
  3. Keep your finger off the trigger until you are ready to shoot.
  4. Be aware of your target and what is beyond it.

Safety Gear Required before Disassembling and Cleaning

To safely disassemble and clean the Barrett M82/M107, it is recommended to use the following safety gear:

  • Safety glasses or goggles to protect your eyes from debris and cleaning chemicals.
  • Hearing protection, such as earplugs or earmuffs, to prevent hearing damage from loud noises.
  • Disposable gloves to keep your hands clean and protected from solvents and oils.

Disassembling and Cleaning the Barrett M82

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Disassembling the Barrett M82/M107

Properly disassembling the Barrett M82/M107 is essential for effective cleaning and maintenance. Follow these steps to safely disassemble the firearm:

Step 1: Unloading the Firearm

Before starting the disassembly process, ensure that the firearm is unloaded. Remove the magazine by pressing the magazine release button, and then visually and physically inspect the chamber to confirm that no round is present.

Step 2: Removing the Bolt and Barrel

To remove the bolt, ensure the firearm is in the safe position. Push the safety lever up to engage the safety. Then, while holding the bolt catch lever down, slide the bolt assembly rearward, and lift it out of the receiver.

Next, to remove the barrel, loosen the barrel retaining nut by rotating it counterclockwise. Once loosened, push the barrel assembly forward and remove it from the receiver.

Step 3: Disassembling the Receiver

To disassemble the receiver, begin by removing the charging handle. Pull it rearward until it stops, then lift and rotate it counterclockwise to remove it.

Next, remove the ejection port cover by pressing on the small catch located at the rear of the cover, and then lift the cover upwards.

Step 4: Dismantling Other Components

Now, you can proceed to dismantle other components of the Barrett M82/M107. This includes removing the trigger assembly, pistol grip, buttstock, and any additional accessory attachments, if applicable. Refer to the manufacturer’s instructions or consult a professional gunsmith if you encounter any difficulties during this process.

Step 5: Proper Handling of Small Parts

When removing small parts during disassembly, it is crucial to handle them with care. Place them in a clean, safe container or a parts tray to prevent loss or damage.

Cleaning the Barrett M82/M107

Cleaning the Barrett M82/M107 is vital to maintain its optimal performance and extend its lifespan. Follow these steps to effectively clean the firearm:

Choosing the Right Cleaning Supplies

Before starting the cleaning process, gather the necessary cleaning supplies. This may include a cleaning rod, bore brush, patches, cleaning solvent, lubricant, and a cleaning brush or toothbrush for hard-to-reach areas.

Step 1: Cleaning the Barrel

Begin by cleaning the barrel using a bore brush attached to a cleaning rod. Apply a small amount of cleaning solvent to the brush, and insert it into the barrel from the chamber end. Move the brush back and forth several times to remove fouling and build-up. Then, attach a patch to the cleaning rod and pass it through the barrel to remove any remaining residue. Repeat this process until the patches come out clean.

Step 2: Cleaning the Receiver and Other Components

Clean the receiver, bolt assembly, and other components using a cleaning brush or toothbrush soaked in cleaning solvent. Pay close attention to areas where dirt and carbon may accumulate, such as the bolt face and firing pin channel. Use a patch or cloth to wipe away any excess solvent and debris.

Step 3: Lubricating Moving Parts

After cleaning, it is important to lubricate the moving parts of the firearm to ensure smooth operation. Apply a small amount of firearm lubricant to the appropriate areas, such as the bolt assembly, slide rails, and trigger mechanism. Be cautious not to over-lubricate, as excessive lubrication can attract dirt and cause malfunctions.

Step 4: Reassembling the Firearm

Once all components are clean and lubricated, reassemble the Barrett M82/M107 in the reverse order of disassembly. Pay attention to proper alignment and ensure that each part is securely in place before proceeding to the next step.

Disassembling and Cleaning the Barrett M82

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Maintenance and Storage

Regular maintenance is essential to keep the Barrett M82/M107 in optimal condition. Develop a maintenance schedule that includes routine cleaning and inspection of the rifle. Additionally, proper storage guidelines should be followed to ensure its longevity.

Regular Maintenance Schedule

Create a maintenance schedule that suits your usage frequency. For regular users, it is recommended to clean the Barrett M82/M107 after every shooting session. This will help prevent fouling and ensure reliable performance. Periodic inspections should also be conducted to identify any signs of wear or potential issues that may require professional attention.

Proper Storage Guidelines

When not in use, store the Barrett M82/M107 in a cool, dry place, preferably in a locked gun safe or cabinet. Make sure the firearm is unloaded, and store ammunition separately. Regularly inspect the firearm during storage to ensure it remains in good condition.

Common Issues and Troubleshooting

Even with proper care, firearms may experience common issues that affect their operation. Familiarize yourself with these issues and follow these troubleshooting tips to resolve them:

Identifying Common Issues with the Barrett M82/M107

  1. Failure to Feed: The cartridge may fail to feed properly into the chamber. Check for obstructions in the feed path and ensure proper magazine seating.
  2. Failure to Eject: Empty casings may not be ejected properly from the firearm. This could be caused by a dirty or worn extractor. Clean and inspect the extractor for any signs of damage.
  3. Excessive Recoil: If the recoil of the firearm feels unusually strong, check for proper installation of the recoil spring and buffer assembly. Ensure they are not damaged or worn.

Troubleshooting Tips for Resolving Common Problems

  1. Clean and lubricate the firearm thoroughly to remove any dirt or fouling that may be causing issues.
  2. Inspect and clean the magazine to ensure proper feeding and ejection.
  3. Check for worn or damaged components and replace them if necessary.
  4. If issues persist, seek professional assistance from a certified gunsmith or contact the manufacturer for further support.

Disassembling and Cleaning the Barrett M82

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Safety Tips for Reassembling

While reassembling the Barrett M82/M107, it is essential to follow safety precautions to avoid accidents or damage to the firearm. These tips will help ensure a safe and successful reassembly process:

Precautions to Take During Reassembly

  1. Double-check that all components are clean and free of debris before reassembly.
  2. Handle small parts with care to prevent loss or damage.
  3. Always keep your fingers away from the trigger and muzzle during the reassembly process.
  4. Take your time and follow the manufacturer’s instructions or consult a professional if needed.

Checking for Proper Functioning after Cleaning

After reassembling the Barrett M82/M107, perform a function check to ensure that the firearm operates correctly. Check the safety mechanisms, test the trigger pull, and verify that all components move smoothly.

Additional Resources and Support

For further information on the disassembly, cleaning, and maintenance of the Barrett M82/M107, consider the following online resources:

  • Barrett Firearms Manufacturing website: Visit the official Barrett Firearms Manufacturing website for detailed instructions, manuals, and videos.
  • Online forums and communities: Participate in firearm-related forums and communities where enthusiasts share their experiences, maintenance tips, and troubleshooting advice.
  • Firearm magazines and publications: Stay informed about the latest developments and maintenance techniques by reading reputable firearm magazines and publications.

For complex maintenance or repairs, it is advisable to seek professional assistance from a certified gunsmith or contact Barrett Firearms Manufacturing directly for expert support.

Disassembling and Cleaning the Barrett M82

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Legal Considerations

Before disassembling and cleaning the Barrett M82/M107, familiarize yourself with the applicable laws regarding possession, ownership, and firearm care in your jurisdiction. Always comply with local, state, and federal laws when handling firearms.

Laws Regarding Possession and Ownership

The possession and ownership of firearms are regulated by various laws that vary from country to country and even within regions. Ensure that you are legally permitted to possess and own the Barrett M82/M107 in your area before acquiring or disassembling the firearm.

Legal Requirements for Disassembling and Cleaning Firearms

While disassembling and cleaning the Barrett M82/M107 is generally not subject to specific legal requirements, it is vital to exercise caution and handle the firearm responsibly. Always abide by local laws and regulations when conducting any maintenance activities, and ensure the safety of yourself and others at all times.


Properly disassembling and cleaning the Barrett M82/M107 is crucial for maintaining its performance and longevity. By following the outlined safety precautions, disassembly steps, cleaning procedures, and maintenance recommendations, you can keep your Barrett M82/M107 in excellent condition. Remember to always prioritize safety, adhere to legal requirements, and appreciate the historical significance of this iconic firearm.